http://www.blackanchorarmament.com2018-08-14T21:16:07Z2018-01-29T00:58:30Z2018-01-29T00:58:30Zhttp://www.blackanchorarmament.com/blog/chrome-lined-barrels-vs-nonchrome-lined-barrels/ There has always been a debate on choosing a barrel that is
chrome-lined or not; some of these myths include barrel wear and accuracy.
Chrome lined barrels are typically more expensive than non-chrome lined barrels
and depending on what type of shooting you are going to do, depends on what type
of barrel should be chosen.

Chrome-lined
barrels provide better protection from barrel wear and erosion. On top of that,
they are a hell of a lot easier to clean. They offer better protection for rapid fire scenarios and will typically last longer than non-chrome
lined barrels. However, they are less accurate than non-chrome lined barrels.
This is due to the once sharp lands and groves that are covered by the lining.
Taking in the consideration on barrel length, twist rate and bullet weight;
chrome lined barrels can see an accuracy drop of about 1/8” – 1/4” MOA @ 100
yards. This may not seem like a lot, but again, this depends on the type of
shooting you are going to do. Keeping in mind that for every 100 yards you go
out, your MOA will increase by 1”.

YARDS

MOA

Accuracy Difference in MOA

100

1”

¼”

200

2”

½”

300

3”

¾”

400

4”

1”

500

5”

1 ¼”

600

6”

1 ½”

700

7”

1 ¾”

800

8”

2”

So by
taking the maximum ¼” MOA @ 100 yards, you could be off by 1” @ 400 yards. Now
not saying a chrome lined barrel is or is not Sub-MOA, there are many factors
that play into the barrel itself. The barrel could already be shooting ½” MOA
at 100 yards to begin with. The chrome lining could be playing a factor in that
accuracy.

This is
when I have to ask what is your preference in shooting? If you are going to be
doing 20 mag dumps in 5 minutes, then the chrome lined barrel is what you want.
For precision shooting or the 200 rounds a range day shooter, save the money
and get a non-chrome lined barrel.

]]>false2018-01-28T02:08:31Z2018-01-28T02:08:31Zhttp://www.blackanchorarmament.com/blog/bullet-weight-vs-barrel-twist/When it comes to picking the right twist rate for you
barrel, you need to ask yourself what type of ammunition you will be using. For
lower grain bullets you are going to want a higher twist rate. Most military
rifles like the M4 will come with the twist rate of 1:7 for use with the M855
5.56 round that has a weight of 66 grains. This is ideal for the 1:7 twist.

If you are
going to shoot a lower grain bullet, let’s say XM193 round that has a 55 grain
bullet, you would be better off using a rifle barrel that has 1:9 twist. This
will allow maximum twist to stabilize the bullet in flight without over
rotation or under rotation for the lighter bullet.

For those
that are unsure, your best choice would be the 1:8 twist rate. This will allow
you to get the best performance out of your barrel when shooting different grain
bullets. Take a look at the chart below to see what will work best for you.

Of course if you are not too concerned with accuracy or optimizing the best twist rate for your style of shooting, you could just go with straight lands and grooves like the Franklin Armory Reformation with a 4" MOA @ 50 yards......